working need to put in shape of pi

FifoQueue.cpp

@@ -0,0 +1,22 @@
+#include "FifoQueue.hpp"
+
+
+void FifoQueue::pop(){
+    std::lock_guard<std::mutex> lock(qMutex);
+    FifoQueue.pop();
+}
+
+bool FifoQueue::empty(){
+    std::lock_guard<std::mutex> lock(qMutex);
+    return FifoQueue.empty();
+}
+
+void FifoQueue::push(int i){
+    std::lock_guard<std::mutex> lock(qMutex);
+    FifoQueue.push(i);
+}
+
+unsigned int FifoQueue::front(){
+    std::lock_guard<std::mutex> lock(qMutex);
+    return FifoQueue.front();
+}